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For each given $n\geq 2$, we construct a family of entire solutions$u_\varepsilon (z,t)$, $\varepsilon>0$, with helical symmetry to the3-dimensional complex-valued Ginzburg-Landau equation\begin{equation*}\nonumber \Delta u+(1-|u|^2)u=0, \quad (z,t) \in\mathbb{R}^2\times \mathbb{R} \simeq \mathbb{R}^3. \end{equation*} Thesesolutions are $2\pi/\varepsilon$-periodic in $t$ and have $n$ helix-vortexcurves, with asymptotic behavior as $\varepsilon\to 0$ $$ u_\varepsilon (z,t)\approx \prod_{j=1}^n W\left( z- \varepsilon^{-1} f_j(\varepsilon t) \right),$$ where $W(z) =w(r) e^{i\theta} $, $z= re^{i\theta},$ is the standard degree$+1$ vortex solution of the planar Ginzburg-Landau equation $ \DeltaW+(1-|W|^2)W=0 \text{ in } \mathbb{R}^2 $ and $$ f_j(t) = \frac { \sqrt{n-1}e^{it}e^{2 i (j-1)\pi/ n }}{ \sqrt{|\log\varepsilon|}}, \quad j=1,\ldots, n. $$Existence of these solutions was previously conjectured, being ${\bf f}(t) =(f_1(t),\ldots, f_n(t))$ a rotating equilibrium point for the renormalizedenergy of vortex filaments there derived, $$ \mathcal W_\varepsilon ( {\bf f} ):=\pi \int_0^{2\pi} \Big ( \, \frac{|\log \varepsilon|} 2\sum_{k=1}^n|f'_k(t)|^2-\sum_{j\neq k}\log |f_j(t)-f_k(t)| \, \Big ) \mathrm{d}t, $$ corresponding to that of a planar logarithmic $n$-body problem. Thesesolutions satisfy $$ \lim_{|z| \to +\infty } |u_\varepsilon (z,t)| = 1 \quad\hbox{uniformly in $t$} $$ and have nontrivial dependence on $t$, thusnegatively answering the Ginzburg-Landau analogue of the Gibbons conjecture forthe Allen-Cahn equation, a question originally formulated by H. Brezis.

Interacting helical vortex filaments in the 3-dimensional Ginzburg-Landau equation